See Sparging and Lauter Tun.
The process of washing sugars away from the grain.
the process of removing spent grains from wort.
Separation of wort from the mash.
The separation of sweet wort from spent grains
Lautering is a process in brewing beer in which the mash is separated into the clear liquid wort and the residual grain. Lautering usually consists of 3 steps: mashout, recirculation, and sparging.